15620116 has 12 divisors (see below), whose sum is σ = 27363700. Its totient is φ = 7801920.

The previous prime is 15620113. The next prime is 15620131. The reversal of 15620116 is 61102651.

It can be written as a sum of positive squares in 2 ways, for example, as 1587600 + 14032516 = 1260^2 + 3746^2 .

It is a super-3 number, since 3×15620116³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15620113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4936 + ... + 7456.

Almost surely, 2^15620116 is an apocalyptic number.

It is an amenable number.

15620116 is a deficient number, since it is larger than the sum of its proper divisors (11743584).

15620116 is a wasteful number, since it uses less digits than its factorization.

15620116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074 (or 4072 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 15620116 is about 3952.2292443632. The cubic root of 15620116 is about 249.9739492855.

Adding to 15620116 its reverse (61102651), we get a palindrome (76722767).

The spelling of 15620116 in words is "fifteen million, six hundred twenty thousand, one hundred sixteen".